Display screen



FIG. 1 is a top front right perspective view of a display screen;

FIG. 2 is a top rear left perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan the view thereof;

FIG. 8 is a bottom plan the view thereof; and,

FIG. 9 is another top rear left perspective view thereof, shown with environment on the rear and top sides.

The broken lines, shown in the drawings, illustrate portions of the display screen that form no part of the claimed design. The additional set of broken lines, showing an image and characters displayed on the rear and top sides of the design in FIG. 9, illustrate environment that forms no part of the claimed design. 

CLAIM The ornamental design for a display screen, as shown and described. 